Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Myron Gordin | Musco | 3 |
| 2 | James L. Drost | Musco | 2 |
| 3 | James A. Whitson | Musco | 1 |
| 3 | Walter R. Tippett | Musco | 1 |
| 3 | Alan J. Yoder | Vermeer Manufacturing | 1 |
| 3 | Joe P. Crookham | Musco | 1 |
| 3 | Gary L. Kelderman | Agtracks | 1 |
Part of Iowa